Interfacial Adsorption of 5-Octyloxymethyl-8-quinolinol over a Range of pH
نویسندگان
چکیده
A high speed stirring method was used to measure the adsorption behavior of 5-octyloxymethyl-8-quinolinol (Hocqn) at the chloroform= water interface over a range of pH 1 13. Results showed the increase in adsorptivity of Hocqn at both low and high pH conditions and indicated that the protonated form (H2ocqn 2þ) was more adsorbable at the interface than the deprotonated form (ocqn ) of this molecule. The interfacial adsorption constants for the charged species were determined at a *Correspondence: Hitoshi Watarai, Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan. E-mail: watarai@chem. sci.osaka-u.ac.jp. SOLVENT EXTRACTION AND ION EXCHANGE Vol. 21, No. 1, pp. 41–51, 2003 DOI: 10.1081=SEI-120017552 0736-6299 (Print); 1532-2262 (Online) Copyright # 2003 by Marcel Dekker, Inc. www.dekker.com 41 ©2002 Marcel Dekker, Inc. All rights reserved. This material may not be used or reproduced in any form without the express written permission of Marcel Dekker, Inc. MARCEL DEKKER, INC. • 270 MADISON AVENUE • NEW YORK, NY 10016
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